Roll-paper.



G. T. JOHNSON.

ROLL PAPER.

APPLIUATION FILED APR. 2s, 191s.

1,093,334. Patented Apr. 14, 1914,

zven to2.-

COLUMBIA PLANOGRADH C0., WASHINGTON. U. t.

STATE@ FlQF.

GEORGE T. JOHNSON, OF MELROSE, MASSACHUSETTS.

ROLL-PAPER.

i,oo3,33a.

The invention consists in improvements in wound rolls of paper suitable for use in roll paper holders on the order of the holder shown, described and claimed in my divisional application filed ctober 25, 1913, Serial No. 797,172. The said wound rolls comprise a wound continuous length of paper, usually having transverse lines of weakening at distances apart corresponding with the lengths of the successive portions intended to be detached separately in the form of sections or sheets for use as paper towels, toilet paper, and the like.

The improvements comprise a wound roll of paper or the like having as a permanent part thereof a central nut-element or its equivalent permanently in connection with the opening or passage of the roll and adapted for engagement with a quickthreaded portion of a supporting sha-ft occupying said central opening or passage as in my division applic-ation aforesaid. Also the special construction of core formed or provided with the said nut-element.

An embodiment of the invention is illustrated in the drawings, in which latter,

Figure lis aplanview of a `fixture or serving apparatus like that of the said divisio-nal application, showing in section a roll of paper and the core or carrier for said roll, in accordance with my present invention. Fig. 2 is an end view of the said ture with the wound roll omitted. Fig. 3 is a front view of the base or back-plate. Fig. 4 is an end view of the core or carrier for the roll of paper. Fig. 5 is an opposite end view thereof. Fig.4 6 is a sectional detail illustrating the locking means. Fig. 7 shows a preferred locking arrangement.

Having reference to the drawings,the frame-portions of the lixture as shown herein comprise t-he base or back-plate l and the two side-arms 2, 2a. For the pur- Specicaton of Letters Patent.

Application filed April 26, 1913.

Patented Apr. 14, i914. Serial No. 763,795.

i pose of detachably connecting the said arms with the said plate without the use of screws, rivets, or other like fastenings, and providing a. hinge connection which will enable the arms to be swung outward and backward to permit the application of a roll of paper, each of the arms is formed at its rea-r end i with widely sepa-rated upper and lower ears or lugs 3, 3, and also is provided at such end with a pintle l constituted by a wire secured in said ears or lugs and extending from one to the other thereof. ln addition, the plate l is formed at each end thereof with a hookshaped extension 5 proportioned and shaped to enter the space between the ears or lugs of the corresponding arm and between the wire pintle and the adjacent end of the body of the arm. The vertical recess at the back of the said extension receives the wire pintle and constitutes a bearing therefor. When the fixture is attached to a wall, the latter closes t-he said recess so that the wire pint-le cannot leave its bearing. To limit the inward swinging movement of the arm, so that in its working position the arm 'shall extend forward at right angles from the plate, the arm is furnished with a lateral shoulder 6 which makes contact with the front face of the plate when the arm is swung inward into its working position. For the accommodation of the screws or bolts by which the fixture is attached to a wall or other support, the plate is formed with transverse elongated slots 7, 7, through which the stems of the said screws or bolts may be passed. The slots are of fairly considerable length so as to enable the fixture to be fastened in place by screws or bolts occupying holes already in the wall, for instance holes which have been made for use in attaching another fixture.

One of the side-arms, namely that marked 2, has attached thereto fixedly one end of a shaft extending across to the other sidearm, 2a. The said shaft is spirally threaded as at 8, Fig. l, for a portion of its length next adjacent the side-arm 2 to which the shaft is attached. The thread is a quick thread. The threading may be effected by grooving or milling the said portion of the shaft, or by formingthe said portion polygonal in cross-section primarily and twisting it, so that the angles shall form a multiple thread, or by applying a similarly twisted polygonal tube. rThe remainder of the length of the shaft is of smaller diameter and is smooth and unthreaded. Upon the smaller portion 9 of the sha-ft are sleeved a longitudinally expanding spiral spring 10, a collar 11, adapted to slide upon the shaft lengthwise thereof, a smaller longitudinally expanding spiral spring 12, and a tube 13, the end of the latter extending to the end of the small portion of the shaft. A socket to receive the said tube is provided in a boss 14 projecting transversely inward from the side-arm 2a. The internal diameter of the socket is such as to provide a close but easy sliding lit for the tube 13.

The roll 15 of paper surrounds a cylindrical core or carrier 16 having two diaphragms or disks, each formed with a central hole for the passage therethrough'of the supporting shaft. The disk 17 is provided with means to engage with the threaded portion 8 of the shaft. In Fig. 1, the hole 17, through the said disk is quadrangular and the convex intermediate portions of the edge of the hole enter the depressions between the raised portions of the thread of the shaft. Consequently, the disk 17 is a nut-element. It engages with the threaded portion of the shaft like an equivalent of a nut. It centers the corresponding portion of the core or carrier and roll with relation to the shaft. The sliding collar 11 is shaped and proportioned so as to enable it to pass entirely through the hole 17, in the disk 17. In this instance it is square in cross-section and in such respect corresponds with the hole 17a. It also is tapering to enable it to enter partway into the central hole 18a of the disk 18 of the core or carrier, so as to lit tightly within said hole and serve to support and center the corresponding portion of the core or carrier and roll.

As thus far described, the construction and arrangement are such that when the core or carrier, with a roll of paper thereon, is mounted upon the shaft with the disk 17 engaged with the threaded part 8 of said shaft and with the disk 18 engaged with the exterior of the tapering collar 11, the core or carrier and roll will be supported concentrically with the shaft, and through the power of the longitudinally expanding spring 9 will be caused to occupy a position nearer the side-arm 2a and with a clear space between the side-arm 2 and the next adjacent end of the core or carrier. When now t-he leading end of the strip of paper is pulled upon so as t0 draw the paper from the roll and cause the latter to turn, the turning movement and the engagement of the disk 17 with the threaded portion of the nonrotating shaft, will cause the core or carrier and roll to travel endwise toward the sidearm 2, thereby causing collar 11 to compress the spring 10` until the increasing tension of said spring causes the strip to tear across .at a line of weakening, `or until the coils of said spring close up together, or it might be until either the core or carrier or the roll brings up against a suitable stop, in this case the said side-arm, whereby the endwise'movement of the core or carrier and roll, and consequently the turningV movement thereof, will be arrested and the continued pull upon the Vpaper will cause the paper to part at the line of weakening between the periphery ofthe roll and the hand-that is pulling upon the paper. The thread of the shaft being a quick thread, a small extent of turning movement'of the roll, z'. e. one or more turns thereof, willoperate to carry the roll endwise to the predetermined limit. The endwise movement of the roll and core or carrier compresses the spring 10 lengthwise between the collar 11 and the shoulder at t-he end of the threaded po-rtion ofthe shaft. The parting Vof the paper releases the roll so that the spring 10 is permitted to act against collar 11 to press the core or carrier and roll endwise toward the sidearm2, the engagement of the disk 17 with the threaded portion ofthe shaft producing Y a reverse rotary movement of the core or carrier androll. The roll comes to rest in its primary position with the free end of the strip of paper exposed in readiness to be grasped. i

The core or carrier usually in practice is cylindrical. The holes in the disks 17 and 1S are formed centrally in the said disks, so that the core or carrier and the roll thereon naturally occupy a position concentric with the shaft. The spring 12 between the sleeve 11 and th-e tube 13 serves as a yielding cushion by which the return movement of the core or carrier and roll thereon is checked. Y

Having reference to the locking arrangements, the close lit between the tube 13 and the inner wall of the socket in connection 'with side-arm 2aM into which it enters is' such ing with a tendency to swing the side-armk 2EL outward about the pivotal axis on which the said side-arm swings will tend to cause the socket occupied by the tube to become inclined in the direction of its length with r-espect to the tube, so that one point of the inner surface of the socket'will cramp against the extreme end of the tube at the point at one side of the axis of the latter, and another point of such surface will cramp against the exterior of the tube at a point y at the diametrically opposite side of the said axis. The cramping or binding will prevent relative endwise movement of the socket with respect to the tube. AsA the tube is held from passing off the end of the shaft by the head that is formed in such end as in Fig. 6, the side-arm will thereby be locked in its inwardly closed position. The unlocking of the side-arm 2a is effected by moving the said side-arm into such position that the socket thereof is parallel with the exterior of the tube, thus rendering the tube free to have lengthwise movement within the socket7 and then taking hold of the knurled exposed inner portion of the tube and sliding the tube inward along the shaft. This of course can be done only when the roll has been completely unwound and the core or carrier slitted or partly broken or cut away for as long as any of the roll remains the tube is covered and inaccessible. Spring 12 yields to permit this hand-effected inward sliding movement of the tube. Vhen the tube has been moved inward the short distance necessary to relieve the pressure of its extreme end against the interior wall of the socket during the outward swinging movement of arm 2a, the cramping action will no longer occur when the said swinging movement is caused to take place, and consequently a complete outward swinging movement of the said side-arm is permitted. When this has happened, the core or carrier may be removed and a roll wound upon another similar core or carrier may be placed upon the shaft. The hinge-connection of the arm 2 with the plate facilitates the operation of removing the core and placing a fresh roll upon the shaft, by rendering it possible to swing the. said arm 2 outward so as to .give the shaft a forwardly inclined position, in which the roll may more readily be applied. If this outward swinging movement of the arm 2 and forward shift of the shaft is not desired, and if a rigid connection of the arm 2 and the plate is found acceptable, then the said arm and the plate may either be formed integral with each other or fixedly connected together in any suitable manner. In the operation of closing the side-arm 2a inward, the end of the boss around the socket therein first encounters the end of the tube and slides the tube inward along the shaft until the axes 0f the shaft and tube and the socket are all in a straight line cr coincide, and the end of the tube registers with the entrance to the socket, whereupon the spring 12 projects the tube outward within the socket and the arm is permitted to assume its complete inward or working position.

The spring 12 acts to cushion the collar 1l in the return movement produced by t-he action of the spring 10. ln addition, a stop-pin 2O applied to the shaft prevents too great a movement of the collar outward toward the arm 2a. The said stop-pin also backs up the spring 12 so that the tension thereof shall oppose any undertaking to pick the lock by pushing back the tube by means of a blade or wire intro-duced into the central opening of the roll alongside the boss of arm 2a when the roll has been caused to move over against the side-arm 2.

The boss of arm 2a constitutes an internal support and bearing for the end of the roll which surrounds the same.

1n the preferred locking arrangement of Fig. 7, the shaft is shorter than in the construction which has been described, the tube 13 is omitted, and the end-portion of the shaft has an axial bore receiving a pin 21 and a longitudinally expanding spring 22. The outer end-portion of the said pin extends beyond the end of the shaft, and normally is kept projected by the action of the spring to the limit fixed by a stop-screw 23 projecting from the pin 21 through a slot 24 in the tubular portion of the shaft, and adapted to engage with an end-wall of the slot. The action in locking and unlocking is essentially the same as in the case of the locking tube of the prior figures. The pin 21 is drawn lengthwise inward to edect the unlocking by taking hold of the exposed head of stop-screw 23.

l claim as my invention 1. The novel article of manufacture comprising a wound roll of paper or the like sheet-material in continuous web-form, said roll having a central opening or passage, and a nutelement permanently in connection with the said opening or passage and adapted for engagement with a quick-threaded portion of a shaft occupying said cent-ral opening or passage.

2. The novel article of manufacture comprising a wound roll of paper or the like sheet-material in continuous web-form, said roll having as a permanent part thereof a central core with passage therethrough for a supporting shaft, said core having a nutelement adapted for engagement with a quick-threaded portion of said shaft.

3. The novel article of manufacture comprising a wound roll of paper or the like sheet-material in continuous web-form, said roll having as a permanent part thereof a core with central shaft-fittings, one thereof constituting a nut-element adapted to engage and cooperate with a quick thread upon a supporting shaft upon which the roll is mounted.

4. The novel article of manufacture comprising a wound roll of paper or the like sheet-material in continuous web-form, said roll having as a permanent part thereof a core with disks having central shaft-opena quick thread upon a supporting shaft oelo ings, one of said disks constructed as L nuteupying said shafteopenngs. Y element adapted to engage and ooperate In testimony whereof I aiX my signature with a. quick thread upon a supporting shaft in presence of two Witnesses.

occupyino' said shaft-openn0s 5. Thebiinproved roll-corebprovded with GEORGE T JOHNSON' disks 17, 18, having Central shaft-openings, Witnesses: one of said disks Constructed as a nut-ele- CHAs. F. RANDALL, ment adapted to engage and coperate With NATHAN B. DAY.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents,

' Washington, D. C. Y 

